Fixed #57
Problem:
When you joined a tournament and left clicking on the pongping icon, it was trying to remove the event for buttons that were not yet injected.
Fix:
Fixed by adding if conditions in the destroy function of tournament in tournament.js file.
The if conditions checks if the buttons are injected or not before removing the event listener.
Fix: Fixed by adding if conditions in the destroy function of tournament in
tournament.jsfile. The if conditions checks if the buttons are injected or not before removing the event listener.